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Numéro de publicationEP1139180 A3
Type de publicationDemande
Numéro de demandeEP20010107489
Date de publication22 oct. 2003
Date de dépôt29 mars 2001
Date de priorité31 mars 2000
Autre référence de publicationEP1139180A2, US6538453
Numéro de publication01107489, 01107489.5, 2001107489, EP 1139180 A3, EP 1139180A3, EP-A3-1139180, EP01107489, EP1139180 A3, EP1139180A3, EP20010107489
InventeursDavid F. Cahill, James V. Ii Orchard
DéposantNexPress Solutions LLC
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes:  Espacenet, Registre européen des brevets
Detecting erratic resistance in temperature sensors
EP 1139180 A3
Résumé
In a reproduction apparatus having a logic and control, and a fuser assembly including a heated fuser roller and a sensor for sensing the temperature of such fuser roller by utilizing heat to change sensor resistance to provide an electrical signal corresponding to the fuser temperature, for the logic and control, a method for detecting erratic resistance in the temperature sensor. The method includes the steps of, at preselected time intervals, comparing a current temperature reading to a previous temperature reading, and determining if the temperature sensing system indicates that the temperature has changed by more than a predetermined amount based upon reproduction apparatus operating characteristics. If the temperature sensing system indicates, from the determining step, that the temperature has changed by more than a predetermined amount, an indication that an error has occurred is made. Then, such error indication is recorded in an error log of the logic and control, and a response strategy for such error is provided.
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Description  disponible en
Revendications  disponible en
Citations de brevets
Brevet cité Date de dépôt Date de publication Déposant Titre
JPH0728363A * Titre non disponible
JPH0930092A * Titre non disponible
JPH02293883A * Titre non disponible
JPH05210333A * Titre non disponible
JPH09237017A * Titre non disponible
US5200958 *28 sept. 19906 avr. 1993Xerox CorporationMethod and apparatus for recording and diagnosing faults in an electronic reprographic printing system
Citations hors brevets
Référence
1 *PATENT ABSTRACTS OF JAPAN vol. 015, no. 071 (P - 1168) 19 February 1991 (1991-02-19)
2 *PATENT ABSTRACTS OF JAPAN vol. 017, no. 643 (P - 1651) 29 November 1993 (1993-11-29)
3 *PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31)
4 *PATENT ABSTRACTS OF JAPAN vol. 1997, no. 06 30 June 1997 (1997-06-30)
5 *PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30)
Classifications
Classification internationaleG03G15/20
Classification coopérativeG03G15/20
Classification européenneG03G15/20
Événements juridiques
DateCodeÉvénementDescription
4 oct. 2001AXRequest for extension of the european patent to
Free format text: AL;LT;LV;MK;RO;SI
4 oct. 2001AKDesignated contracting states:
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Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
22 oct. 2003RIC1Classification (correction)
Ipc: 7G 03G 15/20 A
Ipc: 7G 03G 15/00 B
22 oct. 2003AXRequest for extension of the european patent to
Countries concerned: ALLTLVMKROSI
22 oct. 2003AKDesignated contracting states:
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Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
16 juin 200417PRequest for examination filed
Effective date: 20040422
14 juil. 2004AKXPayment of designation fees
Designated state(s): CH DE FR GB IT LI NL
27 oct. 2004RAP1Transfer of rights of an ep published application
Owner name: EASTMAN KODAK COMPANY
27 déc. 200618DDeemed to be withdrawn
Effective date: 20061003
17 janv. 2007R18DEp-application deemed to be withdrawn: (correction)
Effective date: 20061001